Added: 3 years ago
From: periodicvideos
Views: 39,944
Sort by time | Sort by thread (beta)

Link to this comment:

Share to:
see all

All Comments (96)

Sign In or Sign Up now to post a comment!
  • I can;t wait for an update on this element. This is one of my favorite elements!

  • how about buttium??

  • YOU NOOBS! stop saying uranium isnt rare; its obvious that it isnt rare; jadedmastermind means that astatine is the rarest element which is NOT TRANSURANIC!!!!!!

  • Gahahhaha. Astatine is the only halogen we never get to learn about! So I got really excited when I saw this video about it... What a let down!!!

  • thumps up if you came here from Captain America: The First Avenger Movie Trailer 1

  • Windows XP in the back. HIGH TECH!

  • @Intronetz The video was shot in early 2008, what OS were you using back then?

  • Fail element.

  • I want to see hydroastatine acid, maybe its like the acid in the alien movies

  • Astatine 210 (85 protons, 125 neutrons) has a half-life of 8.1 hours, and that's the longest half life of all 32 varieties.

  • any element with "ass" and "teen" in it is a good element in my books

  • Thanksto this video, I've learnt to say "stable as astatine" when I dissmiss something I don't trust very much. Youtube, I love you!

  • rarest element?

  • @FloridaRaider maybe. I realy dont know. It would be between five elements-- astatine, radon, francium, protactinium, or actinium. but my suspects are astatine or francium. i actually think ur right. Hope this helps!

  • The meanest element ever.

  • Short :)

  • how did I remember it? ASStatine! ^_^

  • I think it's funny how everyone is so down on Astatine as an element because it's so rare and dangerous and understudied. It's funny because that makes it all that much more interesting to me... I'd love to experiment with Astatine some day.

  • here is some thing you might want to know astatine is not real  it was thought to have been found 47 years ago within a pitchblende ore and it turned out to be a sliver of extremely radioactive plutonium there now you know and no offence periodic videos i think you guys are awesome

  • @inlove2marrow

    It was synthetically produced a few years ago in about 1 Millionth of a gram. However, almost all of this has decayed away.

  • @inlove2marrow Obviously you don't know much

  • I want to name a baby Astatine.

  • @iamthelimelord

    1st name - Astatine, middle name - Trichloride then UR last name! Lol.

  • @TheDrBraniac

    oh jesus. francium and cesium. Not the same. Francuim isnt radio active. Neither Cesium. There is a lot more of it than 14 atoms, or 30 grams of anything being present anywhere. Soooo dont talk =]

  • @gumbiman24 Francium is radioactive.

  • Just to clear up some misconceptions about Uranium that are showing up in these comments: No, Uranium is not rare at all. No, Uranium is not "highly radioactive." It's fairly cheap and abundant, and weakly radioactive. Its oxide even gets used as a pigment.

  • I once read that at any given moment, there is estimated to be only around a trillion atoms of astatine on the North American continent.

  • This Is The Rarest Thing In The World

  • What? "Only about 30g (14 atoms)"

    There is absolutely NO WAY an atom could weigh over two grams.

  • It is interesting. Astatine is found in trace amounts in Uranium and Thorium ores. It also is found in the Americium decay chain. Basically an actinide element with an odd number has this as a decay product more so, as it decays by alpha, but still in extremely trace amounts. It depends on the Father isotope. It's found in veins of certain rocks, and in coal. It is also a halogen, similar to Iodine. It falls into organic chemistry, but its isotopes are too short-lived to really understand it.

  • Hey periodicvideos, I have a question. I was wondering, would Nitrogen Triastatide even be possible? And it were to be possible to be isolated and it didn't explode, would the radioactive decay initiate explosion?

  • Well, i think Np, Pu and Am are most rare than this one, they also ocurr in minimun quantities at Uranium ores.

  • There are only about 30 grams or so of Astatine in the earth's crust at one time, therefore it is considered the rarest of the periodic elements.

  • @SodenFroden Neptunium is extremely rarely found in ionized form in uranium ores so yes it is extremely rare

  • HEEY HE HAD DIFFERENT HAIR HAIR CUT?

  • its the rarest thing in the world

  • I think roentgenium is rarer.

  • Comment removed

  • @HazMatLabz - I know.

  • 111 is a synthetic element but it was more stable than other synthetic elements so many atoms of it have been created, unlike ununoctium, which is unstable and rejects the added protons very quickly

  • lol i am horrible at chemistry

  • @M11ty2 lol me to well im not to bad but iv poisoned my self lol i hate surgery

  • I 've heard that due to its extremely short half life, only a gram or two ever exists at a time in the entire earth's crust, or something like that. It's the rarest element below Uranium.

  • Its above uranium

  • @jadedmastermind heard it was a teaspoon at a time

  • @jadedmastermind

    Uranium isn't that rare...

  • @Omnignosis I said Astatine is rare. I didn't say Uranium is rare (it's actually 40 times as common as silver, and is found in concentrations averaging a few parts per million in bedrock, soil, and even water!). Uranium is found as a primary constituent of Allanite, Monazite and (of course) Uraninite. The half life of U238 is 4.468 billion years; the half life of As210 is 8.1 hours.

  • @jadedmastermind

    Kewl. What does it taste like?

  • @Omnignosis Chicken (what else?)

  • @jadedmastermind whaaaaaaaaaaaaaat. Uranium? get your shit straight. Francium should probably be in your "list" . . . just sayin'

  • @rovusss By elements below Uranium, I mean Astatine is the rarest element with an atomic number lower than 92. I believe Francium is the second rarest. This is because Astatine's "most stable isotope" has the shortest half life of any such element from 1-92. The elements above Uranium are mostly manmade (small amounts of Neptunium and Plutonium do occur in the earth's crust).

    I did not say Uranium is rare. Metamorphic rocks such as Allanite and Monazite contain Uranium as a primary constituent.

  • @jadedmastermind It's the rarest element, below Francium, which is said to be the second rarest element on earth. Less than a gram of Astatine is said to exist at one point in the earth's crust.

  • @Isakuma how could someone know that though.... it would be so small and u would have to scan the whole of the earths crust...

  • @will9444555 It's called an 'estimation' for a reason. They're not 100% sure, it's just an assumption based on their current knowledge.

  • @Isakuma oh 1) you never said it was an estimation 2) how could they find evidence for such a thing as that anyway??

  • @will9444555 It's based on the amount of it they've found, and in what amount of space.

  • @jadedmastermind its the worldst rarest element and theres only 1-30 grams of it .. be aware it is extremely dangerous to get near it you will die . the end.

  • @jadedmastermind uranium aint rare lol

  • @jadedmastermind how about francium ?

  • @jadedmastermind uranium is very common, astatine is

    the rarest, and francium shortly after. uranium is primordial, meaning much of it remains from earths formation and it is not reliant on decay chains for development

  • @jadedmastermind rarest uranium? people make tons of bomb and nuclear station with it and every country have some. i dont think that is so rare.

  • @jadedmastermind Francium?

  • @jadedmastermind hmm i thoughed plutonium was even rarer... though that isnt even the rarest. there are some radioactive compounds which decay at such a fast rate that it does not even occur in nature.

  • @jadedmastermind uranium isn't that rare. there is a lot of uranium around. half life of astatine is 8 hours. means that if you got a pound of astatine, after 8 hours, you'll get only half pound of it.

  • @jadedmastermind Uranium is not that rare to be honest, perhaps U235 is but not natural Uranium, Silver is rarer.

  • @jadedmastermind I thought that was Francium. Or maybe I'm wrong.... let's let the professor decide

  • @jadedmastermind it IS francium not uranium there are tons and tons of U and only a few atoms of Fr in the crust plus Uranium has a half life of has a 4.5 billion years:)

  • @jadedmastermind Uranium is not very rare, it's actually in abundance on Earth.

  • @jadedmastermind Uranium is very common, well, U-238 is, but that uranium is useless as of yet. you are right that U-235 is rare, whilst its the one we need. but youll find more uranium in the crust than gold

  • @jadedmastermind The rarest element would probably be element 118 ununoctium, but it will soon be element 120 which will be created soon (or could have just been created and scientist's are cheering right now at bern for creating it)

  • This is a ghost element, kinda like Francium as well.

    Not counting ,of course, the sintetic elements.

  • I think that astatine's half-life is like 8 hours or something, right?

  • I would suppose it depends on the atmosphere. When you have positively charged Protons, Neutral neutrons and an equal quantity of negatively charged electrons to Protons... In a pure vacuum, there is nothing to take the electrons from the outer shell... However when you have even a 0.00001 Atmosphere the electrons can be stolen. When you remove electrons the Protons become more unstable and the Element may fracture into more stable elements.

    As the atom breaks it gives off heat and even light.

  • Hence the atom bomb, which is basically atoms simultaneously breaking apart to create and unbearable heat and light explosion that will vaporise anything within its blast radius (:

  • The half-life is in fact, so short, that it will top existing sooner or later.

  • Astatine has no practical use due to the fact that it is the rarest element on the planet with only few pounds world wide. it has to be produce from a particle accelerator

  • It is predicted to be theoretically similar to iodine in property. It is the rarest naturally occurring element in the earth's crust. It exists as the result of some chain of radioactive decay from uranium and has a short half-life, which makes it so rare...

    His students don't know this? My major is in music :/

  • well they don't need to know it

  • Yes very true. No need to know random trivia.

  • well random trivia helps but i dont think it should be something that you should expect the students to know

  • "Astatine? No one gives a shit about Astatine" (cue U of Nottingham credits)

  • It's a halogen, that's pretty interesting.

  • You could've said that just 25 grams of astatine exist on earth...

  • worst element ever.

  • seconded. worst element ever.

  • One day a use for Astatine will be discovered and it will revolutionise the whole world, lol.

  • @windowlicker1 Fuck, my grade has to do a project where we create a poster for the element we chose. Each element can only have one person assigned to it, out of god-knows how many kids there are in my entire grade. I come in after a vacation, teacher tells me to pick an element, the only elements left are a few synthetic ones (BLEH) and, you guessed it, Astatine.

    Mother

    Fucking

    Astatine

  • @hunterwolf53 Same happened to me too.

  • @windowlicker1 HIS HAIR IS THE WORST ELEMENT ON THIS VIDEO! HAHAHAHAHA

  • Astatine sucks lol

  • well that's the shortest video for element so far....

  • berkellium

  • oh yea 0.24, lol

Loading...
0 / 00Unsaved Playlist Return to active list
    1. Your queue is empty. Add videos to your queue using this button:
      or sign in to load a different list.
    Loading...Loading...Saving...
    • Clear all videos from this list
    • Learn more